扫描程序

开发平台：

Visual C++

tcp_saomiao.cpp：源码内容

							#include <stdio.h>
#include <stdlib.h>
#include <winsock2.h>
#pragma comment(lib,"ws2_32.lib")
int main(int argc,char **argv)
{
	char *TargetIPAddr="172.19.26.15";
	unsigned int StartPort=80;
	unsigned int EndPort=85;
	SOCKET ScanSocket;
	struct sockaddr_in TargetAddr_in;
	int Ret;
	HANDLE hCon=GetStdHandle(STD_OUTPUT_HANDLE);
	CONSOLE_SCREEN_BUFFER_INFO bInfo;
	GetConsoleScreenBufferInfo(hCon,&bInfo);
	WSADATA wsaData;
	if((Ret=WSAStartup(MAKEWORD(2,1),&wsaData))!=0)
	{
		printf("WSAStartup failed with error %dn",Ret);
		return 0;
		
	}
	DWORD dwStart=GetTickCount();
	printf("Target IP:%sn",TargetIPAddr);
	for(unsigned int i=StartPort;i<=EndPort;i++)
	{
		ScanSocket=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);
		if(ScanSocket==INVALID_SOCKET)
		{
			printf("socket failed with error:%dn",WSAGetLastError());
			return 0;
		}
		TargetAddr_in.sin_family=AF_INET;
		TargetAddr_in.sin_addr.s_addr=inet_addr(TargetIPAddr);
		TargetAddr_in.sin_port=htons(i);
		if(connect(ScanSocket,(struct sockaddr*)&TargetAddr_in,sizeof(TargetAddr_in))==SOCKET_ERROR)
		{
			SetConsoleTextAttribute(hCon,10);
			printf("Port%5d Closen",i);
		}
		else
		{
			SetConsoleTextAttribute(hCon,14);
			printf("Port%5d Openn",i);
		}
		if(closesocket(ScanSocket)==SOCKET_ERROR)
		{
			printf("closesocket failed with error %dn",WSAGetLastError());
			return 0;
		}
	}
	SetConsoleTextAttribute(hCon,14);
	printf("ntime:%dmsn",GetTickCount()-dwStart);
	SetConsoleTextAttribute(hCon,bInfo.wAttributes);
	if(WSACleanup()==SOCKET_ERROR)
	{
		printf("WSACleanip failed with error %dn",WSAGetLastError());
		return 0;
	}
	return 1;
}

						